CN112108692A - Horizontal numerical control crankshaft machining equipment - Google Patents

Horizontal numerical control crankshaft machining equipment Download PDF

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Publication number
CN112108692A
CN112108692A CN202010935312.7A CN202010935312A CN112108692A CN 112108692 A CN112108692 A CN 112108692A CN 202010935312 A CN202010935312 A CN 202010935312A CN 112108692 A CN112108692 A CN 112108692A
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CN
China
Prior art keywords
crankshaft
axis
horizontal
numerical control
machining
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Granted
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CN202010935312.7A
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Chinese (zh)
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CN112108692B (en
Inventor
缪连新
吴杰
王雷
周峰
杨一董
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Ningbo CSI Power Co ltd
Ningbo Csi Power & Machinery Group Co ltd
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Ningbo CSI Power Co ltd
Ningbo Csi Power & Machinery Group Co ltd
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Priority to CN202010935312.7A priority Critical patent/CN112108692B/en
Publication of CN112108692A publication Critical patent/CN112108692A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C3/00Milling particular work; Special milling operations; Machines therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C9/00Details or accessories so far as specially adapted to milling machines or cutter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02Driving main working members
    • B23Q5/04Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/10Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

The invention discloses horizontal numerical control crankshaft machining equipment which comprises a horizontal machining workbench, wherein a crankshaft is arranged on the horizontal machining workbench, and the horizontal numerical control crankshaft machining equipment also comprises a milling spindle adjusting device arranged on one side of the horizontal machining workbench along the length direction of the crankshaft, wherein a milling spindle is fixedly arranged on the milling spindle adjusting device, and the milling spindle adjusting device comprises an X-axis adjusting mechanism, a Y-axis adjusting mechanism and a Z-axis adjusting mechanism and is used for adjusting the spatial position of the milling spindle relative to the crankshaft; and a C-axis spindle box for driving the crankshaft to rotate is arranged on the horizontal machining workbench. The horizontal numerical control crankshaft machining equipment can provide two machining modes, namely, the external diameter or eccentric shaft diameter of a shaft part can be milled, and on the other hand, the outer surface plane of a workpiece can be machined through plane milling, drilling, boring, tapping and the like through X, Y, Z triaxial feeding motion.

Description

Horizontal numerical control crankshaft machining equipment
Technical Field
The invention relates to the technical field of crankshaft machining equipment, in particular to horizontal numerical control crankshaft machining equipment.
Background
In a typical piston engine, a crankshaft is a key component for transferring kinetic energy, and reciprocating motion of a piston is converted into rotary motion by the crankshaft, thereby outputting power of the engine. Because the heavy crankshaft is complex in shape, in order to guarantee the influence of bearing torque, bending moment, dynamic load and the like, the machining precision of the heavy crankshaft has high requirements, and meanwhile, because the market demand is very large, the heavy crankshaft is required to realize mass production. For a professional crankshaft manufacturing unit, the existing crankshaft horizontal machining equipment has the defects of high labor intensity of manual operation, low machining efficiency and poor universality, a special eccentric fixture for horizontal lathe machining needs to be matched for turning, continuous cutting cannot be realized on the side face of a crankshaft neck, the number of idle feeds of a machine tool is large, a special fixture needs to be matched for machining one crankshaft, the input cost of equipment and human resources is greatly increased, and the size precision is difficult to effectively guarantee.
Disclosure of Invention
The invention aims to provide horizontal numerical control crankshaft machining equipment which can be used for milling the outer diameter or eccentric shaft diameter of shaft parts and machining the outer surface plane of a workpiece by X, Y, Z triaxial feed motion, such as plane milling, drilling, boring, tapping and the like.
In order to achieve the purpose, the invention provides the following technical scheme: a horizontal numerical control crankshaft machining device comprises a horizontal machining workbench, a crankshaft and a milling spindle adjusting device, wherein the crankshaft is installed on the horizontal machining workbench, the milling spindle adjusting device is arranged on one side of the horizontal machining workbench along the length direction of the crankshaft, a milling spindle is fixedly installed on the milling spindle adjusting device, the milling spindle adjusting device comprises an X-axis adjusting mechanism, a Y-axis adjusting mechanism and a Z-axis adjusting mechanism which are perpendicular to each other and used for adjusting the positions of the milling spindle relative to the crankshaft along the X-axis direction, the Y-axis direction and the Z-axis direction; the horizontal machining workbench is provided with a C-shaft spindle box used for driving the crankshaft to rotate, the C-shaft spindle box is provided with a position locking mechanism used for locking and fixing the circumferential position of the crankshaft relative to the milling spindle, the position locking mechanism comprises an encoder assembly used for feeding back a detection signal and a brake assembly used for locking the crankshaft, and a controller is arranged in the C-shaft spindle box and used for controlling the brake assembly to perform corresponding actions according to the detection signal fed back by the encoder assembly.
Preferably, X axle adjustment mechanism includes the edge the X axle motion base that crankshaft length direction set up, Y axle adjustment mechanism include with X axle motion base sliding connection's first stand, sliding connection has Y axle to remove the slide on the first stand, Z axle adjustment mechanism include with Y axle removes slide sliding connection's Z axle ram, it installs to mill the main shaft on the Z axle ram.
Preferably, the X-axis adjusting mechanism comprises a first servo motor arranged on one side of the X-axis moving base, a first lead screw is arranged on the X-axis moving base, the first lead screw is connected with an output end of the first servo motor, a first internal thread sleeve matched with the first lead screw is arranged at the bottom of the first upright post, and the first internal thread sleeve is arranged on the outer side of the first lead screw; the Y-axis adjusting mechanism comprises a second servo motor arranged at the top of the first upright post, the output end of the second servo motor is connected with a second screw rod, a second internal thread sleeve is arranged on the Y-axis movable sliding plate, and the second internal thread sleeve is arranged on the outer side of the second screw rod in a sleeved mode; the Z-axis adjusting mechanism comprises a third servo motor fixedly arranged on the Y-axis movable sliding plate, the output end of the third servo motor is connected with a third screw rod, a third internal thread sleeve is arranged on the Z-axis ram, and the third internal thread sleeve is sleeved on the outer side of the third screw rod; the Z-axis adjusting mechanism further comprises a fourth motor arranged on one side, far away from the milling spindle, of the Z-axis ram.
Preferably, the horizontal machining workbench further comprises a jacking tailstock, the jacking tailstock is arranged on one side, away from the C-axis spindle box, of the crankshaft and used for limiting the central position of the crankshaft, and a tip is arranged on the jacking tailstock and rotatably connected with the crankshaft.
Preferably, the horizontal machining workbench comprises a workbench body, wherein the workbench body is provided with a first sliding guide rail on one side of the jacking tail frame, the jacking tail frame is connected with the first sliding guide rail in a sliding manner through a tail frame base, and the tail frame base is provided with a first locking piece for fixing the jacking tail frame on the first sliding guide rail.
Preferably, the horizontal machining workbench further comprises a center frame arranged on the workbench body and used for supporting the neck of the crankshaft.
Preferably, the center frame is connected with the table body in a sliding mode, and a second locking piece is arranged at the bottom of the center frame and used for fixing the center frame on the table body.
Preferably, the C-axis headstock further comprises a drive shaft connected with the crankshaft and a drive assembly for controlling the rotating speed of the drive shaft.
Preferably, the driving assembly comprises a fifth servo motor, the fifth servo motor is connected with a headstock synchronous pulley through a conveying belt, the headstock synchronous pulley is connected with a driving shaft through a speed changing shaft, and the speed changing shaft is connected with a gearbox.
Preferably, the encoder component comprises an encoder connected with the driving shaft through an encoder synchronous pulley, the output end of the encoder is electrically connected with the controller, the brake component comprises a brake pad fixedly mounted on the driving shaft, a brake caliper matched with the brake pad is arranged on the C-shaft spindle box and used for locking the brake pad, and the output end of the controller is connected with the brake caliper.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the milling spindle adjusting device is arranged to adjust the spatial position of the milling spindle relative to the crankshaft, so that different positions of the crankshaft can be machined. And can also process the specific angle of bent axle through setting up position locking mechanical system, position locking mechanical system is including the encoder subassembly that is used for controlling locking angle size, and the size of locking angle can be controlled in mutually supporting of encoder subassembly and controller, and braking subassembly can be locked the bent axle under this specific angle, provides two kinds of processing modes, has improved machining efficiency.
The central frame and the jacking tail frame can move and fasten on the table body in the corresponding axial direction according to the workpiece by arranging the jacking tail frame and the central frame, so that the universality of the processing equipment is improved.
The C-shaft spindle box is provided with the driving assembly, so that the rotating speed of the driving shaft can be controlled, and the machining precision is improved.
Drawings
FIG. 1 is a schematic structural connection diagram of a horizontal numerical control crankshaft machining device of the present invention;
FIG. 2 is a schematic structural diagram of a milling spindle adjusting device in the horizontal numerical control crankshaft machining equipment according to the present invention in a front view;
FIG. 3 is an enlarged view of part A of FIG. 2 according to the present invention;
FIG. 4 is a schematic diagram of a right-view structure of a milling spindle adjusting device in the horizontal numerical control crankshaft machining equipment according to the invention;
FIG. 5 is a schematic structural diagram of a horizontal machining workbench in the horizontal numerical control crankshaft machining device according to the present invention;
FIG. 6 is a schematic structural diagram of a C-axis headstock in the horizontal numerical control crankshaft machining equipment according to the present invention in a front view;
FIG. 7 is a schematic left-side view of a C-axis headstock in the horizontal numerical control crankshaft machining apparatus according to the present invention;
FIG. 8 is a schematic structural diagram of a Z-axis ram moving vertically in the horizontal numerical control crankshaft machining device according to the present invention.
In the figure: 1. a horizontal machining workbench; 11. a table body; 1101. a first sliding guide rail; 12. c shaft main shaft box; 120. an encoder assembly; 1201. an encoder synchronous pulley; 1202. an encoder; 130. a brake assembly; 1301. a brake pad; 1302. a brake caliper; 1303. a jaw; 140. a drive assembly; 1401. a fifth servo motor; 1402. a conveyor belt; 1403. a headstock synchronous pulley; 1404. a speed change shaft; 13. tightly pushing the tail frame; 1301. a tip; 1302. a tailstock base; 1303. a first locking member; 14. a center frame; 1401. a second locking member; 2. a crankshaft; 3. a milling spindle adjusting device; 31. an X-axis adjusting mechanism; 310. an X-axis motion base; 311. a first servo motor; 312. a first lead screw; 313. a first internally threaded sleeve; 32. a Y-axis adjustment mechanism; 320. a first upright post; 321. a Y-axis movable sliding plate; 3211. a vertical portion; 3212. a bending section; 3213. a first chute; 3214. a second chute; 3215. a first slider; 3216. a second slider; 322. a second servo motor; 323. a second lead screw; 324. a second internally threaded sleeve; 33. a Z-axis adjustment mechanism; 330. a Z-axis ram; 331. milling a main shaft; 332. a third servo motor; 333. a third screw rod; 334. a third internal thread bush; 4. a drive shaft; 401. a key block; 5. a flange plate; 6. and a fourth motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, in a first embodiment of the present invention, a horizontal type numerical control crankshaft 2 processing apparatus includes a horizontal type processing workbench 1, a crankshaft 2 is installed on the horizontal type processing workbench 1, and further includes a milling spindle 331 adjusting device 3 disposed on one side of the horizontal type processing workbench 1 along a length direction of the crankshaft 2, a milling spindle 331 is fixedly installed on the milling spindle 331 adjusting device 3, and the milling spindle 331 adjusting device 3 includes an X-axis adjusting mechanism 31, a Y-axis adjusting mechanism 32, and a Z-axis adjusting mechanism 33, and is configured to adjust a spatial position of the milling spindle 331 relative to the crankshaft 2; and a C-axis spindle box 12 for driving the crankshaft 2 to rotate is arranged on the horizontal machining workbench 1. Different positions of the crankshaft 2 can be machined by providing an adjusting device 3 for the milling spindle 331 for adjusting the three-dimensional spatial position of the milling spindle 331 relative to the crankshaft 2. And the C-axis spindle box 12 drives the workpiece to rotate to realize rotary feed motion, the milling spindle 331 is provided with a milling cutter to realize cutting main motion, and the milling cutter can mill the outer diameter, the eccentric shaft diameter and each open gear of shaft parts.
As shown in fig. 2, the X-axis adjusting mechanism 31 includes an X-axis moving base 310 disposed along the length direction of the crankshaft 2, the Y-axis adjusting mechanism 32 includes a first upright post 320 slidably connected to the X-axis moving base 310, a Y-axis moving sliding plate 321 is slidably connected to the first upright post 320, the Z-axis adjusting mechanism 33 includes a Z-axis ram 330 slidably connected to the Y-axis moving sliding plate 321, and the milling spindle 331 is mounted on the Z-axis ram 330. The X-axis adjusting mechanism 31 includes a first servo motor 311 disposed on one side of the X-axis moving base 310, a first lead screw 312 is disposed on the X-axis moving base 310, the first lead screw 312 is connected to an output end of the first servo motor 311, a first internal thread sleeve 313 matched with the first lead screw 312 is disposed at the bottom of the first upright post 320, and the first internal thread sleeve 313 is sleeved on the outer side of the first lead screw 312; the Y-axis adjusting mechanism 32 includes a second servo motor 322 disposed at the top of the first upright 320, and an output end of the second servo motor 322 is connected to a second lead screw 323.
As shown in fig. 3 and 4, a second internal thread sleeve 324 is disposed on the Y-axis sliding plate 321, and the second internal thread sleeve 324 is sleeved on an outer side of the second screw rod 323; the Z-axis adjusting mechanism 33 includes a third servo motor 332 fixedly mounted on the Y-axis moving sliding plate 321, an output end of the third servo motor 332 is connected to a third screw rod 333, a third internal thread sleeve 334 is disposed on the Z-axis ram 330, and the third internal thread sleeve 334 is sleeved on an outer side of the third screw rod 333; the Z-axis adjusting mechanism 33 further includes a fourth motor 6 disposed on a side of the Z-axis ram 330 away from the milling spindle 331, and configured to drive the milling spindle 331 to rotate. Specifically, the Y-axis moving sliding plate 321 is an L-shaped structure and includes a vertical portion 3211 and a bending portion 3212, the vertical portion 3211 is provided with a first sliding slot 3213, the Z-axis ram 330 is provided with a first sliding block 3215 matched with the first sliding slot 3213, the bending portion 3212 is provided with a second sliding slot 3214, and the Z-axis ram 330 is provided with a second sliding block 3216 matched with the second sliding slot 3214, so that the Z-axis ram 330 can slide on the Y-axis moving sliding plate 321 along the axial direction of the milling spindle 331, and the Y-axis moving sliding plate 321 of the L-shaped structure can increase the stability of the Z-axis ram 330 when sliding.
As shown in fig. 5, the horizontal machining workbench 1 further comprises a tightening tail stock 13, the tightening tail stock 13 is symmetrically arranged on the other side of the crankshaft 2 relative to the C-axis headstock 12 and used for limiting the center position of the crankshaft 2, a tip 1301 is arranged on the tightening tail stock 13, and the tip 1301 is rotatably connected with the crankshaft 2; one end of the crankshaft 2 is connected with a driving shaft 4 of a C-shaft main spindle box 12 through a flange 5, a plurality of key blocks 401 are arranged on one side, connected with the flange 5, of the driving shaft 4, key grooves matched with the key grooves are formed in the flange 5, and the torque of the driving shaft 4 connected with the flange 5 is increased. The horizontal machining workbench 1 comprises a workbench body 11, wherein a first sliding guide rail 1101 is arranged on one side of the tightly-jacking tail frame 13 on the workbench body 11, the tightly-jacking tail frame 13 is in sliding connection with the first sliding guide rail 1101 through a tail frame base 1302, and a first locking piece 1303 is arranged on the tail frame base 1302 and used for fixing the tightly-jacking tail frame 13 on the first sliding guide rail 1101. The horizontal machining workbench 1 further comprises a center frame 14 arranged on the workbench body 11 and used for supporting the neck of the crankshaft 2; the center frame 14 is slidably connected to the table body 11, and a second locking member 1401 is disposed at the bottom of the center frame 14 and is used for fixing the center frame 14 to the table body 11. By arranging the jacking tail frames 13 and the central frames 14, the crankshafts 2 can be reliably supported and position-limited, and by arranging the first locking pieces 1303 and the second locking pieces 1401, the central frames 14 and the jacking tail frames 13 can be axially moved and fastened on the table body 11 correspondingly according to workpieces, so that the universality of the machining equipment is improved.
As shown in fig. 6-8, the C-axis headstock 12 further includes a driving shaft 4 connected to the crankshaft 2, and a driving assembly 140 for controlling the rotation speed of the driving shaft 4; the drive assembly 140 comprises a fifth servomotor 1401, which fifth servomotor 1401 is connected via a conveyor belt 1402 to a headstock synchronous pulley 1403, which headstock synchronous pulley 1403 is connected via a shift shaft 1404 to the drive shaft 4, which shift shaft 1404 is connected to the gearbox. The brake assembly 130 comprises a brake pad 1301 fixedly mounted on the driving shaft 4, a brake caliper 1302 matched with the brake pad 1301 is arranged on the C-axis spindle box 12 and used for locking the brake pad 1301, and a jaw 1303 matched with the brake pad 1301 is arranged on the brake caliper 1302 and used for clamping the brake pad 1301. The output of the controller is connected to a brake caliper 1302. The C-axis headstock 12 is internally provided with a controller, the encoder assembly 120 comprises an encoder 1202 connected with the driving shaft 4 through an encoder 1202 synchronous pulley 1201, the output end of the encoder 1202 is electrically connected with the controller, the encoder 1202 can convert angular displacement into an electric signal, the encoder 1202 can convert the rotation angle of the driving shaft 4 into a pulse count and send the pulse count to the controller, the controller comprises a first preset value, when the number of pulses fed back to the controller by the encoder 1202 reaches a value corresponding to the first preset value, the controller controls the brake caliper 1302 to clamp the brake pad 1301 to lock the crankshaft 2, and the crankshaft 2 is driven to rotate to a specified position.
The C-axis spindle box 12 is provided with the driving assembly 140, so that the rotating speed of the driving shaft 4 can be controlled, the outer diameter of the butt-axis part can be milled at different rotating speeds, and the machining precision is improved. And can also process the specific angle of bent axle 2 through setting up position locking mechanical system, position locking mechanical system is including being used for controlling encoder subassembly 120 of locking angle size, the size of locking angle can be controlled in encoder subassembly 120 and the mutually supporting of controller, brake subassembly 130 can lock bent axle 2 under this specific angle, to bent axle 2 locking back, X, Y, Z can be realized through milling main shaft 331 adjusting device 3, triaxial feed motion, can drive through fourth motor 6 and mill main shaft 331 and rotate, thereby the completion that can be convenient mills processing such as plane, drilling, bore hole and tapping, the suitability of this processing equipment has also been improved when having improved machining efficiency.
The working principle is as follows: a crankshaft 2 to be machined is placed on the horizontal machining workbench 1 through the axial movement adjustment of a jacking tailstock 13 on the horizontal machining workbench 1, one end of the crankshaft 2 is connected with a driving shaft 4 of a C-shaft spindle box 12 through a flange plate 5, and the other end of the crankshaft 2 is connected with a tip 1301 of the jacking tailstock 13. Then, the neck of the crankshaft 2 is supported by axially moving the adjusting center frame 14, and the installation process of the crankshaft 2 is realized.
If the surface of the crankshaft 2 is to be milled, the crankshaft 2 is driven to rotate by the C-axis headstock 12, and the three-dimensional space position of the milling spindle 331 is adjusted by the X-axis adjusting mechanism 31, the Y-axis adjusting mechanism 32 and the Z-axis adjusting mechanism 33, so that the milling of the surface of the crankshaft 2 can be realized. If drilling, boring or tapping is to be performed, the brake caliper 1302 is controlled by the position locking mechanism to clamp the brake pad 1301, so that the crankshaft 2 is locked at a specific angle, and then the drilling, boring or tapping operation can be performed by controlling the fourth motor 6 and the third servo motor 332.
By arranging the jacking tail frames 13 and the central frames 14, the crankshafts 2 can be reliably supported and position-limited, and by arranging the first locking pieces 1303 and the second locking pieces 1401, the central frames 14 and the jacking tail frames 13 can be axially moved and fastened on the table body 11 correspondingly according to workpieces, so that the universality of the machining equipment is improved.
Headstock synchronous pulley 1403 is connected with drive shaft 4 through change shaft 1404, and change shaft 1404 is connected with the gearbox, switches high low-speed gear through the gear lever and realizes high low-speed conversion in the gearbox, and high-speed can carry out the turning, and the low-speed can be milled to all adopt servo motor to drive, can realize the meticulous milling process to bent axle 2.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. The horizontal numerical control crankshaft machining equipment comprises a horizontal machining workbench, wherein a crankshaft is mounted on the horizontal machining workbench, and the horizontal numerical control crankshaft machining equipment is characterized by further comprising a milling spindle adjusting device arranged on one side of the horizontal machining workbench along the length direction of the crankshaft, wherein a milling spindle is fixedly mounted on the milling spindle adjusting device and comprises an X-axis adjusting mechanism, a Y-axis adjusting mechanism and a Z-axis adjusting mechanism which are perpendicular to each other and used for adjusting the positions of the milling spindle relative to the crankshaft along the X-axis direction, the Y-axis direction and the Z-axis direction; the horizontal machining workbench is provided with a C-shaft spindle box used for driving the crankshaft to rotate, the C-shaft spindle box is provided with a position locking mechanism used for locking and fixing the circumferential position of the crankshaft relative to the milling spindle, the position locking mechanism comprises an encoder assembly used for feeding back a detection signal and a brake assembly used for locking the crankshaft, and a controller is arranged in the C-shaft spindle box and used for controlling the brake assembly to perform corresponding actions according to the detection signal fed back by the encoder assembly.
2. The horizontal numerical control crankshaft machining device according to claim 1, characterized in that: x axle adjustment mechanism includes the edge the X axle motion base that bent axle length direction set up, Y axle adjustment mechanism include with X axle motion base sliding connection's first stand, sliding connection has Y axle to remove the slide on the first stand, Z axle adjustment mechanism include with Y axle removes slide sliding connection's Z axle ram, it installs to mill the main shaft on the Z axle ram.
3. The horizontal numerical control crankshaft machining device according to claim 1, characterized in that: the X-axis adjusting mechanism comprises a first servo motor arranged on one side of the X-axis moving base, a first lead screw is arranged on the X-axis moving base and connected with the output end of the first servo motor, a first internal thread sleeve matched with the first lead screw is arranged at the bottom of the first upright post, and the first internal thread sleeve is arranged on the outer side of the first lead screw; the Y-axis adjusting mechanism comprises a second servo motor arranged at the top of the first upright post, the output end of the second servo motor is connected with a second screw rod, a second internal thread sleeve is arranged on the Y-axis movable sliding plate, and the second internal thread sleeve is arranged on the outer side of the second screw rod in a sleeved mode; the Z-axis adjusting mechanism comprises a third servo motor fixedly arranged on the Y-axis movable sliding plate, the output end of the third servo motor is connected with a third screw rod, a third internal thread sleeve is arranged on the Z-axis ram, and the third internal thread sleeve is sleeved on the outer side of the third screw rod; the Z-axis adjusting mechanism further comprises a fourth motor arranged on one side, far away from the milling spindle, of the Z-axis ram.
4. The horizontal numerical control crankshaft machining device according to claim 1, characterized in that: the horizontal machining workbench further comprises a jacking tailstock, the jacking tailstock is arranged on one side, away from the C-axis spindle box, of the crankshaft and used for limiting the central position of the crankshaft, and a tip is arranged on the jacking tailstock and is rotatably connected with the crankshaft.
5. The horizontal numerical control crankshaft machining device according to claim 4, characterized in that: horizontal processing workstation includes the stage body, lie in on the stage body one side of the tight tailstock in top is equipped with first sliding guide, the tight tailstock in top passes through tailstock base and first sliding guide sliding connection, be equipped with first retaining member on the tailstock base, be used for with the tight tailstock in top is fixed on first sliding guide.
6. The horizontal numerical control crankshaft machining device according to claim 5, characterized in that: the horizontal machining workbench further comprises a center frame arranged on the workbench body and used for supporting the neck of the crankshaft.
7. The horizontal numerical control crankshaft machining device according to claim 6, characterized in that: the center frame is connected with the table body in a sliding mode, and a second locking piece is arranged at the bottom of the center frame and used for fixing the center frame on the table body.
8. The horizontal numerical control crankshaft machining device according to claim 1, characterized in that: the C-axis headstock also comprises a driving shaft connected with the crankshaft and a driving assembly used for controlling the rotating speed of the driving shaft.
9. The horizontal numerical control crankshaft machining device according to claim 8, characterized in that: the driving assembly comprises a fifth servo motor, the fifth servo motor is connected with a headstock synchronous belt wheel through a conveying belt, the headstock synchronous belt wheel is connected with a driving shaft through a speed changing shaft, and the speed changing shaft is connected with a gearbox.
10. The horizontal numerical control crankshaft machining device according to claim 8, characterized in that: the encoder component comprises an encoder connected with the driving shaft through an encoder synchronous pulley, the output end of the encoder is electrically connected with a controller, the brake component comprises a brake pad fixedly mounted on the driving shaft, a brake caliper matched with the brake pad is arranged on the C-shaft spindle box, and the output end of the controller is connected with the brake caliper and used for controlling the brake caliper to lock or release the brake pad.
CN202010935312.7A 2020-09-08 2020-09-08 Horizontal numerical control crankshaft machining equipment Active CN112108692B (en)

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CN112108692B CN112108692B (en) 2022-04-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115246077A (en) * 2022-07-29 2022-10-28 马鞍山市粤美金属制品科技实业有限公司 Crankshaft outer contour finish machining equipment

Citations (7)

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